Re:Privacy Concerns are SO overrrated (Score 1)

Secondly, anything that is sold should be marked as such in the store's database. Somebody walking into the store with tagged clothing should not be fingered for shop lifting, since the item shoudl have been marked as sold.

WRONG. It's not economically feasible to keep an opt-out database. The other poster already pointed out how stupid it sounds to have the hundreds of wallmart stores cross reference and link up their opt-op database for eternity.

I have a question here: why wouldn't a store just keep a history of the items it recieved, and match that to the items it sold? It would then be able to tell that the clothes someone is wearing when they walk in the store had been part of the store's inventory and whether or not it was bought here without a link to every other store. I don't think that it would be economically feasible to keep a global sync'ed database of all items, but it may be possible to keep a database of items that are suspected to be stolen (or other reasons).

Keeping such a database clean may be difficult